Help! Lost link, fragrance matching site.

One or other of the perfume blogs linked to a site where you could get suggestions for a similar fragrance to whatever you entered a while back.
It was run by someone who writes about perfume, if I remember correctly, and far better than the commercial alternatives, with a huge database of fragrances, including niche, vintage and the like. I stupidly lost the link and haven't been able to locate it again, even after some extensive googling and digging through blog archives.